Improvement in making plumbers joints



J P. HA MOLD FOR MAKING PL BEES JOINTS.

No. 28,750. Patented June 19, 1860.

UNITED STATES PATENT OFFICE.

IMPROVEMENT -{IN MAKING PLUMBERS" JOINTS.

S ecification forming part of Letters Patent No. 28,750, dated June 19, 18 60.

To all whom it may concern:

. Be it known that I, J OHNP. HAYES, of the, city of Philadelphia and State of Bennsylvania, have invented a new and Improved Mold for Making Plumbers Joints in Metal Pipes; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure l is a perspective view of .the said mold; Fig. 2, an inner side view of the onehalf part of the same, with sections of the pipes to be united as arranged therein for the purpose; and Fig. 3, a transverse section of the said one-half part of the mold, like let ters, when on the different figures, indicating the same parts.

:IIhenature of this invention consists in proiding a mold or casewith asecondarytchamber, substantially as hereinafterdescribed,

whereby the melted metalwhich is usediu 'making the required joint is caused to pass in contact with .the .pipes therein, so as to first strongly heat or partially melt, and thus prepare them for intimate union or combination when both the chambers in the mold become filled with the said metal, and also'in the employment, in combination with a mold'adapted for making plumbers joints by melting the ends of the pipes together, of a tubular protector within the said pipes, substantially in the mannerhcreinafterdescribed,wherebylead or other easily-fusible metal pipes can be more perfectly, expeditiously, and economically united together than heretofore by any appropriate metal more fusible than the said tubu- I lar protector. i

In the drawings, A and A represent the re-' spective half parts of the molds; B and'B,

sections of two fusible metal pipes asadjusted within the said mold preparatory to their being united, and C the tubular protect-or within the same.

The two parts A A are each provided with a handle, d,-and are connected together by hinged joints e 6, so that the two said parts may be readily and accuratelyolosed together or parted, as occasion may require. When the mold is closed, as in Fig. 1, there are two communicating chambers, f and f, produced therein, the one,'f, being close, the other, f, open at each end g g, for the reception of the A ends of the pipes which-are to be joined therein. These end openings, gg, are made of the same diameters as the pipes, so as to fit closely aroun'dthe same when applied thereto. The chamber f is somewhat of a spherical form between its open endsgjg; and has an opening or mouth,-- h, for' the admissionof the melted metal required in making the j oint' in the pipes. The outer side of this'o'pening h is provided with a curvedor concave plate, i,

which is made'to slide in grooves between the handles dd, so that it can be inserted, as seen in Fig. 1, or removed, as indicated in Fig. 2,

as 'eithervertical or' horizontal pipes are to be united in the said mold.

The tubular protector 6 consists of a short piece of tin-plate or other difficultly-i'usible sheet metal, bent into-a hollow cylinder to fitaccurately the bores of the pipes'which are to lac-united int-he mold. .The chamber f of the mold is in this'instance constructed for re- ,ceiving the ends'of two pipes only; but it will be obvious that the insertion of branch pi'pes may be provided forby making this chamber f with additional cylindrical openings forthe purpose.

,Operation: 'lhe fusible pipes B B, which ale to be united bymelting, areabutted together, with the tubular protector C inserted in their respective bores, as seen in Fig. 2. The mold isthen closed around them and held by its handles d .d, so as to keep the abut-- ting ends of the pipes BB in the middle of. the chamber f Lead or other fusible metal suitable for the purpose being melted, and also highly heated, is now poured into the mouth h of the chamber f, where, passing in contact with the parts of the pipes in the said chamber on its way to the secondary chamber f, it heats the said pipes and eventually melts theends of the parts which are within the chamber f, and as the said chamber becomes filled the mass of melted metal becomes incorporated together with the said pipes B B around the protector O, and on cooling or setting therein there results a perfect union or combination of the metal and the two said pipes. The moldis'now opened, and the superfluous lump of metal formed by the secondary chamber f out off. Cast-iron pipes may be thus united, even by melted cast-iron, :if' so required. Copper pipes and pipes of otherdirficultly-fusiblemetal, if required to b1e meta-1,01 course will not require'the emplo'ymentzof the tubular protect-or C in con 'znectionwith'this mold, because the end of one "metal cannot pass into the same.

be united by solder, lead, or othereasily-fnsi such pipe being inserted in the end of the other, as heretofore, the melted eementing'- As eo'mmon lead can, by means of this mold,-

bevused to join lead pipes, the economy of the. moldis on this ground alone, or=irrespeetive-of the time saved,'equa,1 tothe difl'erence betweenthe cost of lead and solder, which is about one tofive in favorof' the lead v Having this fully describe'd the construction and operation of my improved mold-and pointed out its superior utility, what-I claim as my invention, and desire to secure by Letters Patent, is-

'1. A mold or case provided witha secondary chamber, f; to operate substantiallyin the manner and for the purpose set forth aindde v scribed.

- 2. In combination with 'a mold 'orease adapted for making plumbers joints in pipes -b y .the process ofhmeltin'g the ends of the said pipes, asdescribed, the employment ofia; tubudar protector, G, as and for the purposespecified." v JOHN P. HAYES;

Witnesses:

- 'BENJ. MORISON,

F.-SHATTIIOK. 

